Hadron

February 7, 20244 min readA feasibility study on CERN’s Future Circular Collider identifies where and how the machine could be built—but its construction is far from assuredBy Elizabeth Gibney, Davide Castelvecchi & Nature magazineThe proposed Future Circular Collider, or FCC (large circle, dashed outline), would be built close to its predecessor at CERN, the Large Hadron Collider (small circle). Europe is pushing forwards with plans to build a 91-kilometre-long, 15-billion-swiss-franc (US$17-billion) supercollider…

Illustration of two types of long-lived particles decaying into a pair of muons, showing how the signals of the muons can be traced back to the long-lived particle decay point using data from the tracker and muon detectors. Credit: CMS/CERN This search for exotic long-lived particles looks at the possibility of “dark photon” production, which would occur when a Higgs boson decays into muons displaced in the detector.The CMS experiment has presented its first search for new physics using data from Run 3 of the Large Hadron…

Scientists working on CERN’s Compact Muon Solenoid (CMS) experiment have published the latest data in their search for a long-lived exotic particle known as the dark photon.Let’s Eat a Chocolate Xbox ControllerDark photons (also called hidden photons) differ from regular photons—particles of light—in that they are thought to have mass, making them a prime candidate to explain dark matter. Dark matter is the catchall term to describe seemingly invisible stuff in space that has only been observed via its gravitational…

Researchers at CERN’s ATLAS experiment on the Large Hadron Collider have introduced a novel approach to search for Dark Matter through semi-visible jets, marking a significant paradigm shift in the field. Their work provides new directions and stringent upper bounds in the ongoing quest to understand dark matter.Researchers investigate whether dark matter particles actually are produced inside a jet of standard model particles.The existence of dark matter is a long-standing puzzle in our universe. Dark matter makes up…

Candidate Higgs boson decays into two photons in the ATLAS experiment. Credit: CERNNew result from the ATLAS experiment at <span class="glossaryLink" aria-describedby="tt" data-cmtooltip="<div class=glossaryItemTitle>CERN</div><div class=glossaryItemBody>Established in 1954 and headquartered in Geneva, Switzerland, CERN is a European research organization that operates the Large Hadron Collider (LHC), the largest particle physics laboratory in the world. Its full name is the…

Protons accelerated almost to the speed of light can collide similarly to billiard balls. However, since protons are quantum particles, from measuring such collisions we can learn unobvious things about the strong interaction. Credit: IFJ PANA study conducted by the ATLAS experiment at the Large Hadron Accelerator has gained insights into the properties of strong interactions between protons at ultra-high energies by exploring elastic scattering in proton-proton collisions. The research found discrepancies with…

CERN’s ATLAS and CMS teams have found initial evidence of a rare Higgs boson decay into a Z boson and photon. The discovery, while not meeting conventional statistical significance, provides valuable insights and potential indirect evidence of undiscovered particles and physics beyond the Standard Model. Credit: CERNThe ATLAS and CMS collaborations have joined forces to establish the first evidence of the rare decay of the Higgs boson into a Z boson and a <span class="glossaryLink"…

A team of researchers at CERN’s Large Hadron Collider have measured the mass of the W boson and found it to be in line with the Standard Model of particle physics, the overarching theory that describes the four fundamental forces and the characteristics of the smallest units of matter.What Is Carbon Capture? With Gizmodo’s Molly Taft | TechmodoThe team’s finding counters a precise measurement taken last year by a collaboration of hundreds of scientists atthe CDF Collaboration, who were happily surprised to find that the…

The FASER collaboration has made its first observation of neutrinos produced at the Large Hadron Collider (LHC) during its measurement campaign, with statistical significance exceeding the threshold for a discovery in particle physics. The observation includes muon neutrinos and candidate events of electron neutrinos. Additionally, the collaboration presented results on searches for dark photons, which enabled the exclusion of regions motivated by dark matter. FASER aims to collect more data to allow more searches and…

A global effort to gain a more complete understanding of the fundamental building blocks of the universe resumed Tuesday near Geneva, as the world’s largest particle collider restarted scientific operations after about a three-year hiatus for maintenance and upgrades. The Large Hadron Collider, or LHC, operated by the European Organization for Nuclear Research, or CERN, features a 17-mile circular tunnel in which particles like protons…